Electric safety-fuse or cut-out.



No. 758,648. PATENTED MAY 3, 1904. J. A; HEANY. ELECTRIC SAFETY FUSE 0RGUT-OUT.

APPLICATION FILED 0011.13, 1903.

H0 MODEL.

- UNITED STATES Patented May 3, 1904.

PATENT OFFICE. C

JOHN A. HEANY, OF YORK, PENNSYLVANIA, ASSIGNOR TO THE TETER- HEANYDEVELOPING COMPANY, OF CHARLESTON, WEST VIRGINIA, A CORPORATION OF WESTVIRGINIA.

ELECTRIC SAFETY-FUSE OR OUT-OUT- SPEGIFICATION forming part of LettersPatent No. 758,648, dated May 3, 1904.

Application filed October 13, 1903- Serial No. 176,840. (No model.)

To all whom it may concern.-

Be it known that I, JOHN ALLEN HEANY, a citizen of the United States,residing at York, in the county of York and State of Pennsylvania, haveinvented certain new and useful Improvements in Electric SafetyFuses orCut- Outs, of whichthe following is a specification.

My invention has relation to a safety-fuse or cut-out of the inclosedtype; and in such connection it relates to the construction andarrangement of such a fuse or cut-out.

The principal object of my invention is to provide a fuse or cut-outconsisting of a spool of dielectric material having a longitudinal I5bore for the reception of the fuse-wire and end caps arranged to form'aclosure for the bore of the spool, said caps adapted when advanced uponthe ends of the spool to first cut off the superfluous parts of thefuse-wire and thereafter clamp the ends of the wire to the spool,

in conjunction with a fuse-block of dielectric material having metallicplates forming the terminals for the current, said plates arranged toclamp the caps upon the spool when the 5 fuse enters the fuse-block.

The nature and scope of my invention will be more fully understood fromthe following description, taken in connection with the accompanyingdrawings, forming part hereof,

3 in which Figure l is a top or plan view of the fuse or cut-out and theblock carrying the terminal plates embodying main features of myinvention; and Fig. 2 is a view, partly in side elevation and partly inlongitudinal section, of

Fig, 1. 7

Referring to the drawings, or represents a spool of dielectric materialhaving a longitudinal bore 6 for the reception of the fuse-wire d. Oneach end of the spool a is adapted to be slipped a metallic cap 6,having on its periphery a shearing edge e. The caps 6 when advanced onthe spool a, to form a closure for the bore Z) first shear or cut offthe superfluous parts of the fuse-wire d and thereafter clamp the endsof said fuse-wire d to the spool 60. The body of the spool a issupported in springclips f, projecting from the base of a fuseblock 9,of dielectric material. In the ends of the block 9 are arranged metallicplates 71,, forming continuations for the terminals h of the current.These plates it serve to clamp the caps e on the spool a when the fuseis inserted in the fuse-block 9.

Having thus described the nature and object of my invention, whatI claimas new, and desire to secure by Letters Patent, is

A safety-fuse or cut-out, comprising a spool of dielectric materialhaving a longitudinal bore for the reception of afuse-wire, and metalliccaps arranged to form a closure for the bore of the spool, said capsadapted when advanced upon the spool to first shear off the fuse-wireand then clamp the ends of the fuse- Wire to the spool, in combinationwith afuseblock of dielectric material having metallic plates forming acontinuation for the terminals of the current, said plates arranged toclamp the caps to the spool when the fuse is inserted in the block.

In testimony whereof I have hereunto set my signature in the presence oftwo subscribing witnesses. I

JOHN A. HEANY.

Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH...

